Avalanche Forecast

Moderate - Intensity of incoming weather systems is uncertain on Tuesday

MONDAY: Mainly cloudy / Light to moderate east wind / Alpine temperature 2 / Freezing level 1400mTUESDAY: Periods of wet snow or rain, accumulation 5-10cm / Light to moderate southeast wind / Alpine temperature 3 / Freezing level 1700mWEDNESDAY: Periods of wet snow or rain, accumulation 5cm / Light to moderate southwest wind / Alpine temperature 3 / Freezing level 1700m

On Saturday in the north part of the region, a size 3 natural avalanche was reported to have triggered in the storm snow and stepping down to one of the February weak layers. Explosive control produced a few size 2-2.5 storm slabs and a few natural storm slabs were reported in the northern part of the region. On Friday, a large cornice fall missed a group of skiers on a north aspect in the Duffey area. Click here to See a MIN report for details. On Monday, storm and wind slabs may remain reactive in human triggers at upper elevation. In northern parts of the region, the deeper February weak layers continue to present a low probability / high consequence scenario.

Storm snow amounts from Saturday totalled roughly 40 cm around Coquihalla and Allison Pass and 30 cm around Duffey Lakes. Freezing levels reached roughly 1400 m, resulting in rain and/or wet snow at lower elevations. Thicker wind slabs and large cornices likely exist in alpine terrain. The storm snow sits above a widespread rain crust up to about 2100 m, but the snow will likely form a good bond to this crust. In the north of the region, the February weak layers are 80-120 cm deep and include a buried surface hoar layer that recently produced a few persistent slab avalanches and a crust/facet layer that appears to be gaining strength. In the southern parts of the region, the lower snowpack is generally stable.